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ID: 3668751 pcs
thumb image of 1.6ct Trillion Facet Reddish Orange Fire Opal (ID: 366875)
1.57 ct Fire Opal
8.9 x 8.9 mm
$ 61.51
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ID: 4211912 pcs
thumb image of 2.1ct Trillion Facet Violet Blue Tanzanite (ID: 421191)
2.11 ct Tanzanite
7.3 x 7.2 mm
$ 245.16
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ID: 4579591 pcs
thumb image of 0.5ct Trillion Facet Light Pink Morganite (ID: 457959)
0.47 ct Morganite
5.8 x 5.7 mm
$ 37.60
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ID: 4322155 pcs
thumb image of 2.4ct Trillion Facet Pinkish Rose Rhodolite Garnet (ID: 432215)
2.43 ct Rhodolite Garnet
5.2 x 5.1 mm
$ 19.44
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ID: 4374311 pcs
thumb image of 0.8ct Trillion Facet Swiss Blue Topaz (ID: 437431)
0.82 ct Topaz
6.1 x 6.1 mm
$ 4.10
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ID: 4243847 pcs
thumb image of 3.8ct Trillion Facet Pinkish Rose Rhodolite Garnet (ID: 424384)
3.75 ct Rhodolite Garnet
5 x 4.9 mm
$ 30.00
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ID: 3614392 pcs
thumb image of 2.7ct Trillion Facet Yellow Golden Beryl (ID: 361439)
2.72 ct Golden Beryl
8.1 x 8 mm
$ 54.40
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ID: 4375751 pcs
thumb image of 0.8ct Trillion Facet Sky Blue Topaz (ID: 437575)
0.82 ct Topaz
6.3 x 6.1 mm
$ 4.10
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ID: 4065061 pcs
thumb image of 16.1ct Trillion Facet Pink Kunzite (ID: 406506)
16.13 ct Kunzite
17.6 x 13.9 mm
$ 682.94
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ID: 4213082 pcs
thumb image of 1.7ct Trillion Facet Violet Blue Tanzanite (ID: 421308)
1.74 ct Tanzanite
6.6 x 6.5 mm
$ 202.17
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ID: 4374221 pcs
thumb image of 0.8ct Trillion Facet Swiss Blue Topaz (ID: 437422)
0.83 ct Topaz
6.2 x 5.9 mm
$ 4.15
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ID: 3631591 pcs
thumb image of 27ct Triangle Green Variscite (ID: 363159)
26.96 ct Variscite
23.7 x 22.8 mm
$ 134.80
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ID: 4577531 pcs
thumb image of 0.9ct Trillion Facet Light Pink Morganite (ID: 457753)
0.90 ct Morganite
7.6 x 6.6 mm
$ 72.00
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ID: 3347612 pcs
thumb image of 7.9ct Trillion Rose-Cut Black Spinel (ID: 334761)
7.94 ct Spinel
10 x 9.8 mm
$ 39.70
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ID: 4515846 pcs
thumb image of 1.7ct Trillion Facet Red Pyrope Garnet (ID: 451584)
1.72 ct Pyrope Garnet
4.1 x 4.2 mm
$ 12.04
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ID: 4374321 pcs
thumb image of 0.9ct Trillion Facet Swiss Blue Topaz (ID: 437432)
0.87 ct Topaz
6.2 x 6.1 mm
$ 4.35
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ID: 4241916 pcs
thumb image of 2.7ct Trillion Facet Pinkish Rose Rhodolite Garnet (ID: 424191)
2.69 ct Rhodolite Garnet
5.1 x 5 mm
$ 21.52
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ID: 4142532 pcs
thumb image of 5.7ct Trillion Facet Swiss Blue Topaz (ID: 414253)
5.73 ct Topaz
9.2 x 9.1 mm
$ 40.11
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ID: 4213032 pcs
thumb image of 1.9ct Trillion Facet Violet Blue Tanzanite (ID: 421303)
1.93 ct Tanzanite
6.6 x 6.5 mm
$ 224.25
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ID: 4526602 pcs
thumb image of 3.1ct Trillion Facet Sky Blue Topaz (ID: 452660)
3.08 ct Topaz
7.2 x 7.1 mm
$ 21.56
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ID: 4212182 pcs
thumb image of 1.9ct Trillion Facet Violet Blue Tanzanite (ID: 421218)
1.93 ct Tanzanite
7.2 x 7 mm
$ 224.25
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Trillion Shaped Gems
When it comes to gemstones, shape and cut are are often used interchangeably. The reason is because the difference between the two isn't always obvious. Shape refers to the overall outline of a stone, while 'cut' refers the actual style, process or technique used to work the rough into finished gemstone pieces. Historically, a trilliant gem exhibits the basic trilliant design, featuring 43 facets cut into a triangular shape gemstone that has been worked into 1:1 ratio and cut with 43 facets. The 43 facets are based on the 'brilliant-cut' in order to maximize 'brilliance'. Like other brilliant cuts, the equilateral form of a well-cut trilliant gem should return a substantial degree of light and color to the eye. The trillion cutting style was originally introduced by the Asscher brothers (Asscher-cut) and was trademarked in 1962 by Henry Meyer Diamond Company of New York. Since the expiration of their 'trillion' patent, the term can be used to refer to all triangular shaped gems, even those which are not faceted.

Many trillions today are step-cut, scissor-cut, plain-cut, mixed-cut with undulating surfaces, and trillion gemstones are even cut en cabochon, featuring a flat bottom with a low or high dome depending on the type of gem. As long as the gemstone has a face-up outline or shape which resembles a triangle, then it can be described as a trillion-shaped gemstone. Gemstones like zircon, spinel, diamond, aquamarine, beryl and white sapphire are often cut as trillions to maximize brilliance, while darker gemstones such as tanzanite, spessartite garnet, rhodolite garnet and amethyst are given a trilliant cut in order to lighten and brighten color (rather than focusing on brilliance). Since most diamond-cut styles are modified for colored stones, many colored stone dealers use alternative terms that refer to shape rather than cut-style.
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Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

Size Comparison Chart